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, 2009

Combinatorics Difficulty 1.0 Junior Find the answer Canada

If Jeff picks one letter randomly from the alphabet, what is the probability that the letter is in the word 'probability'?

(A) $\frac{9}{26}$ (B) $\frac{15}{26}$ (C) $\frac{10}{26}$ (D) $\frac{17}{26}$ (E) $\frac{8}{26}$

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.